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authorkinitrupti2017-05-12 18:40:35 +0530
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-{
- "metadata": {
- "name": "",
- "signature": "sha256:9667e81e13ddfe520a56dd149f9bdf0ca5ae444b71480274d3f1dd69a833ceb1"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Chapter6-Combustion Chambers and After burners"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Ex1-pg309"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#determine number of mole of hydrogen and oxygen\n",
- "nH2=12/2. ##molecular mass og hydrogen =2kg/kmol\n",
- "nO2=8/32. ##Molecular mass of O2=32kg/kmol\n",
- "print'%s %.f %s'%(\"No. of kilomoles of H2\",nH2,\"\")\n",
- "print'%s %.2f %s'%(\"No. of kilomoles of O2\",nO2,\"\")"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "No. of kilomoles of H2 6 \n",
- "No. of kilomoles of O2 0.25 \n"
- ]
- }
- ],
- "prompt_number": 2
- },
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Ex3-pg317"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "import math\n",
- "#calculate lower and higher heating values of hydrogen\n",
- "T=298.16 ##in K\n",
- "dhf=-241827. ##heat of formation of H2O(g in kJ.\n",
- "n=1 ##kmol\n",
- "Qr=n*dhf ##kJ/kmol\n",
- "LHV=(-1.)*Qr/2.\n",
- "print'%s %.1f %s'%(\"LHV in\",LHV,\"kJ/kg\")\n",
- "HHV=LHV+9*2443\n",
- "print'%s %.1f %s'%(\"HHV in \",HHV,\"kJ/kg\")"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "LHV in 120913.5 kJ/kg\n",
- "HHV in 142900.5 kJ/kg\n"
- ]
- }
- ],
- "prompt_number": 3
- },
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Ex5-pg320"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "import math\n",
- "#calcualte the ratio Nh2/no2 of the reactants and fuel oxdizer and adiabatic flame temperature\n",
- "##from equation CH4+2.4(O2+3.76N2)-->CO2+2H2O+0.4O2+9.02N2\n",
- "f=(12+4.)/(2.4*(32.+3.76*28.)) ##fuel to air ratio based on mass.\n",
- "fs=(12+4.)/(2.*(32.+3.76*28.)) ##fuel to air ratio based on stoichometric condition.\n",
- "feq=f/fs\n",
- "print'%s %.7f %s'%(\"fuel to air ratio based on mass\",f,\"\")\n",
- "print'%s %.7f %s'%(\"fuel to air ratio based on stoichometric condition\",fs,\"\")\n",
- "print'%s %.7f %s'%(\"Equivalent ratio\",feq,\"\")\n",
- "dH=-802303 ##kJ\n",
- "dC=484.7 ##kJ\n",
- "Dt=(-1)*dH/dC ##Dt=T2-Tf\n",
- "Tf=25+273\n",
- "T2=Dt+Tf\n",
- "print'%s %.4f %s'%(\"The diabatic flame temperature in\",T2,\" K\")"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "fuel to air ratio based on mass 0.0485625 \n",
- "fuel to air ratio based on stoichometric condition 0.0582751 \n",
- "Equivalent ratio 0.8333333 \n",
- "The diabatic flame temperature in 1953.2569 K\n"
- ]
- }
- ],
- "prompt_number": 4
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Ex6-pg323"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "import math\n",
- "import numpy\n",
- "#calculate mole fraction of N2 at equlibrium when pm is 1 atm and 10 atms\n",
- "print(\"Example 6.6\")\n",
- "Kp=0.1\n",
- "\n",
- "pm=1.\n",
- "y=2\n",
- "d=numpy.roots(y)\n",
- "x=0.1561738 \n",
- "print'%s %.2f %s '%(\"(a)Mole fraction of N2 at equilibrium when pm is 1 atm:\",x,\"\")\n",
- "#part (b)\n",
- "Kp=0.1\n",
- "\n",
- "pm=10.\n",
- "x=0.0499376\n",
- "y=- 0.1 + 40.1*x\n",
- "d=numpy.roots(y)\n",
- "i=numpy.linspace(1,2,num=1);\n",
- "print'%s %.2f %s '%(\"(b)Mole fraction of N2 at equilibrium when pm is 10 atm:\",x,\"\")\n",
- " \n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Example 6.6\n",
- "(a)Mole fraction of N2 at equilibrium when pm is 1 atm: 0.16 \n",
- "(b)Mole fraction of N2 at equilibrium when pm is 10 atm: 0.05 \n"
- ]
- }
- ],
- "prompt_number": 26
- }
- ],
- "metadata": {}
- }
- ]
-} \ No newline at end of file